Description
The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c in QEMU (aka Quick Emulator) allows local OS guest privileged users to cause a denial of service (infinite loop and QEMU process crash) via vectors involving the transfer mode register during multi block transfer.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | qemu | 1:2.8+dfsg-3 | — |
| Debian 13 | qemu | 1:2.8+dfsg-3 | — |
| Debian 12 | qemu | 1:2.8+dfsg-3 | — |
| Debian 8 | qemu | 1:2.1+dfsg-12+deb8u7 | DLA-1497-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.11 | USN-3261-1 |
| Ubuntu 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.33 | USN-3261-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | qemu | 2.6.2-41.16.1 | SUSE-SU-2017:1774-1 |
| SLES 12 SP1 | qemu | 2.3.1-33.3.3 | SUSE-SU-2017:2946-1 |
| SLES 12 | qemu | 2.0.2-48.34.3 | SUSE-SU-2017:2969-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | qemu | 2.6.2-41.16.1 | SUSE-SU-2017:1774-1 |
| SLES for SAP 12 SP1 | qemu | 2.3.1-33.3.3 | SUSE-SU-2017:2946-1 |
| SUSE OpenStack Cloud 6 | qemu | 2.3.1-33.3.3 | SUSE-SU-2017:2946-1 |
Advisories 5
- DLA-1497-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3261-1 qemu vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2017:1774-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2969-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2946-1 Security update for qemu SUSE / openSUSE Security Updates · May 2, 2025
References
- 96263 vdb-entry
- [debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update mailing-list
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=6e86d90352adf6cb08295255220295cf23c4286e
- [oss-security] 20170214 CVE-2017-5987 Qemu: sd: infinite loop issue in multi block transfers mailing-list
- [qemu-devel] 20170213 Re: [Qemu-devel] [PATCH v3 1/4] sd: sdhci: check transfer mode register in multi block transfer mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=1421995
- GLSA-201704-01 vendor-advisory